If TAX_RATE is a named constant of type Double, which of the following statements is valid?
A) TAX_RATE += 1
B) dblVar = TAX_RATE + 1
C) TAX_RATE = 2 * TAX_RATE
D) All of the above

Question

Quizplus · Accepted Answer

As TAX_RATE is a named constant, it cannot be modified once it has been assigned a value. Therefore, options A and C are invalid. Option B is valid as it uses the named constant in an arithmetic expression without modifying its value.

If TAX_RATE Is a Named Constant of Type Double, Which